Okay no. Jane finding the Aether is not nearly as unfortunately "convenient" as you all would have us believe. She's been searching for these type of anomalies for 2 years. She's in London because Selvig insisted she be there. She is a world renowned scientist (by now) and specializes in fashioning her own equipment. This equipment managed to pickup a signal for the convergence between the realms. Whilst investigating she slipped into the alternate realm (where the Aether was hidden by Bor's men) and it bonded itself to her.

I'm not understanding how this is any more "convenient" than Red Skull seeking out the Tesseract in Norway, Odin banishing Thor to Midgard to learn humility or Tony Stark being captured by the same Ten Ring insurgents as Yinsen.

Making Earth the center of the situation, while having a portal that leads to a place that is suppose to be impossible to find are just two examples.

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